Control method of washing equipment and washing equipment

Abstract

The invention discloses a control method of washing equipment and the washing equipment, and the control method comprises the steps: in the washing process of the washing equipment, detecting the stain amount of washing water at a certain time interval, and obtaining a detection value; the range of N continuously obtained detection values is obtained, and if the range is smaller than or equal to a set threshold value, the washing process is ended. According to the method, the range of the multiple detection values is obtained, the washing process is ended by comparing the range with the set threshold value, so that the range can reflect the accurate change condition of the stain amount within a period of time, whether the stain amount change is kept stable or not in the washing process is further determined, and when the stain amount change is stable, the washing process is ended; and whether the washing process is finished or not can be judged more accurately.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing equipment, and in particular, relates to a control method for washing equipment and the washing equipment. Background Art

[0002] As the most widely used household appliance in people's daily life, washing equipment helps people get rid of the trouble of washing clothes and brings great convenience to people. However, with the increasing types and functions of washing equipment, it is difficult to control the end time of the washing process while making it more suitable for users' different washing needs.

[0003] For this reason, some washing equipment is provided with a detection device which can detect the turbidity of washing water, and decides when to end the washing process according to the comparison result of the detection value and the threshold value.

[0004] However, the judgment process of the above-mentioned washing device is relatively simple, and it is impossible to judge the change of the amount of stains in the washing water, and it is impossible to ensure the accuracy of the judgment of ending the washing process according to the change of the amount of stains.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a control method and a washing device for a washing device, obtain the range of multiple detection values, end the washing process by comparing the range with a set threshold, so that the range can reflect the change of the amount of stains over a period of time more accurately, and then determine whether the change in the amount of stains during the washing process remains stable. When it is stable, the washing process is ended, making the judgment of whether to end the washing process more accurate.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] The present invention provides a control method for a washing device, comprising:

[0009] During the washing process of the washing device, the amount of stains in the washing water is detected at regular intervals to obtain a detection value;

[0010] The range of N consecutively obtained detection values ​​is taken, and if the range is less than or equal to a set threshold, the washing process is terminated.

[0011] The present invention obtains the range of multiple detection values, and ends the washing process by comparing the range with a set threshold value, so that the range can reflect the change of the amount of stains within a period of time more accurately, and then determine whether the change amount of stains remains stable during the washing process. When it is stable, the washing process is ended, making the judgment of whether to end the washing process more accurate.

[0012] A further solution of the present invention is: if the extreme difference is greater than a set threshold, the amount of stains in the washing water is detected again after a certain interval;

[0013] The range of the detection value obtained this time and the N-1 detection values ​​obtained continuously before is taken, and it is determined whether to end the washing process based on the obtained range.

[0014] In the above scheme, continuous judgment on whether to end the washing process is achieved.

[0015] A further solution of the present invention is: during the washing process of the washing device, the amount of stains in the washing water is detected every equal set time to obtain a detection value;

[0016] If the extreme difference is greater than a set threshold, the washing device detects the amount of stains in the washing water again after the set time has passed.

[0017] In the above scheme, by setting the duration and utilizing the advantages of high detection frequency and high accuracy of the detection device, the judgment that the range of multiple detection values ​​is less than or equal to the set threshold is made more accurate.

[0018] The detection cycle can periodically detect whether new stains are dissolved in the washing water, so that the judgment of whether to end the washing process is more in line with the dissolution process of the stains.

[0019] A further solution of the present invention is: when the washing process starts to run for a preset time, the washing device starts to detect the amount of stains in the washing water to obtain the first detection value in this washing process.

[0020] In the above scheme, the judgment of whether to end the washing process is further made more consistent with the dissolution process of the stains.

[0021] A further solution of the present invention is that: the washing device is preset with a plurality of different washing modes, and the washing device determines the upper limit of the washing time of the current washing process according to the washing mode currently being run;

[0022] If the running time of the current washing process reaches the upper limit of the running time, the washing process is ended.

[0023] In the above scheme, the washing process is terminated when the running time of the washing process is greater than the upper limit of the running time, thereby avoiding the situation where the extreme difference of multiple detection values ​​cannot be less than or equal to the set threshold due to stains that cannot be washed clean, and preventing the long-term running of the washing process from causing the running motor of the washing equipment to overheat or the clothes to be washed badly, and further meeting the requirements of different washing modes for washing cleanliness.

[0024] A further solution of the present invention is that after the washing process is finished, the washing device runs a rinsing process, and the rinsing process includes one or more rinsing cycles;

[0025] During the rinsing cycle, the amount of stains in the rinsing water is detected at regular intervals to obtain a measurement value;

[0026] According to the plurality of the measured values, the stain content of the rinse water is obtained through calculation;

[0027] If the stain content of the rinsing water is greater than the set limit, the operation of draining the washing tub is performed, and then the next rinsing cycle is run again, otherwise the rinsing process is ended after the current rinsing cycle is completed.

[0028] In the above scheme, if the stain content of the rinsing water is greater than the set limit, the rinsing process is terminated, so that fewer stains remain on the clothes.

[0029] A further solution of the present invention is: after the water intake of the rinsing cycle is completed, a rinsing detection cycle of a fixed length is preset;

[0030] In the rinsing detection cycle, the amount of stains in the rinsing water is detected at equal intervals of a set time to obtain a measurement value;

[0031] At the end of the rinse detection cycle, the stain content of the rinse water is obtained through calculation based on the multiple measured values.

[0032] A further solution of the present invention is that the washing device is preset with several different rinsing modes;

[0033] The washing device determines an upper limit of a rinsing cycle according to a currently running rinsing mode;

[0034] During the rinsing process, the washing device obtains the cumulative number of operations of the rinsing cycle. If the cumulative number of operations reaches the upper limit of the rinsing cycle, the rinsing process is ended after the current rinsing cycle is completed.

[0035] In the above scheme, when the cumulative number of times the rinse cycle is run reaches the upper limit of the rinse cycle, the rinsing process is terminated, thereby avoiding the situation where the stain content of the rinse water cannot be less than or equal to the set threshold due to stains that cannot be washed away, and preventing the long-term operation of the rinsing process from causing the operating motor of the washing equipment to overheat or the clothes to be rinsed badly, and further meeting the requirements of different rinsing modes for rinsing cleanliness.

[0036] The present invention also provides a washing device, wherein the washing device executes the control method of the washing device.

[0037] A further solution of the present invention is: the washing device comprises: a detection module, comprising an ultraviolet spectrum sensor, the ultraviolet spectrum sensor detects the amount of stains in the washing water by ultraviolet absorption spectroscopy to obtain a detection value;

[0038] The control module is used to control the detection module to obtain a detection value at a certain interval, take the range of N consecutively obtained detection values, and control the washing device whether to end the washing process based on the comparison result of the range with a set threshold.

[0039] In the above scheme, through the control module, the washing equipment further processes the detection value of the washing water and the measurement value of the rinsing water detected by the detection module and makes a judgment on ending the washing process and the rinsing process. Through the ultraviolet spectrum sensor, accurate detection value of the washing water and measurement value of the rinsing water are obtained, making the timing of deciding to end the washing process and the rinsing process more accurate.

[0040] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0041] 1. Obtain the range of multiple detection values, and end the washing process by comparing the range with a set threshold, so that the range can reflect the change of the amount of stains within a period of time more accurately, and then determine whether the change amount of stains remains stable during the washing process. When it is stable, end the washing process, so that the judgment of whether to end the washing process is more accurate;

[0042] 2. If the stain content of the rinse water is greater than the set limit, the rinsing process is terminated, so that the stains on the clothes are less. By setting the rinsing cycle, the water in the washing tub can be changed during the process of obtaining the measured value of the stain content of the rinse water, so that the rinsing process is more efficient;

[0043] 3. Through the control module, the washing equipment further processes the detection value of the washing water and the measurement value of the rinsing water detected by the detection module and determines whether to end the washing process and the rinsing process. Through the ultraviolet spectrum sensor, accurate detection value of the washing water and measurement value of the rinsing water are obtained, making the timing of deciding to end the washing process and the rinsing process more accurate.

[0044] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0046] Figure 1 It is a schematic flow chart of a control method of a washing device of the present invention;

[0047] Figure 2 It is a data schematic diagram of a specific implementation method of a washing device control method of the present invention.

[0048] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0050] like Figure 1 and Figure 2 As shown, the present invention provides a control method and a washing device for a washing device, which obtains the range of multiple detection values, and ends the washing process by comparing the range with a set threshold value, so that the range can reflect the change of the amount of stains within a period of time more accurately, and then determine whether the change amount of stains remains stable during the washing process. When it is stable, the washing process is ended, making the judgment of whether to end the washing process more accurate.

[0051] Embodiment 1

[0052] like Figure 1 and Figure 2 As shown, this embodiment provides a control method for a washing device, including: during the washing process of the washing device, at a certain interval, the amount of stains in the washing water is detected to obtain a detection value; the range of N consecutively obtained detection values ​​is taken, and if the range is less than or equal to a set threshold, the washing process is terminated.

[0053] Specifically, when the stains on the clothes are no longer dissolved in the washing water, the detection value tends to be stable and the range is small. Therefore, if the range is less than or equal to the set threshold, the washing process is terminated. The range can reflect the change in the amount of stains over a period of time more accurately, and then determine whether the change in the amount of stains remains stable during the washing process. When it is stable, the washing process is terminated, making the judgment of whether to end the washing process more accurate.

[0054] Specifically, the washing device includes: a detection module, including an ultraviolet spectrum sensor, which detects the amount of stains in washing water by ultraviolet absorption spectroscopy to obtain a detection value; a control module, which is used to control the detection module to obtain a detection value at a certain interval, and take the range of N consecutively obtained detection values. If the range is less than or equal to a set threshold, the washing device is controlled to end the washing process.

[0055] The ultraviolet spectrum sensor detects the amount of stains using ultraviolet absorption spectroscopy. The ultraviolet absorption spectroscopy detects the amount of a substance by observing the corresponding relationship between a substance and its ultraviolet visible spectrum when the substance absorbs light of a specific wavelength to a maximum value. The amount of stains includes a variety of substances that cannot be detected by conventional sensors. Conventional sensors, such as infrared dual-tube sensors, cannot detect organic soluble stains, including oily stains, proteins, clothing treatment agents, and emulsions, while the ultraviolet spectrum sensor can detect the above-mentioned organic soluble stains as well as insoluble particles. Since organic soluble stains include the main types of dirt on clothes, during the washing process, the amount of stains is detected in real time and accurately, and the range of N consecutive detection values ​​is taken. This reduces the interference of the fluctuation of the detection value of the washing water detected by the ultraviolet spectrum sensor on the judgment result, reduces the influence of the detection error of the ultraviolet spectrum sensor due to the setting position and other reasons on the judgment result, and reduces the influence of electromagnetic interference generated by the motor of the washing equipment and other equipment on the ultraviolet spectrum sensor on the judgment result, thereby increasing the credibility of the range, and making the timing of determining the end of the washing process more accurate.

[0056] At the same time, the ultraviolet spectrum sensor also has the advantages of high detection frequency and high sensitivity. The high detection frequency means that multiple detections can be performed, and the high sensitivity means that the obtained detection values ​​and measurement values ​​have a high degree of distinction. Therefore, by taking the range of the measurement value, when the ultraviolet spectrum sensor has a high detection frequency and high sensitivity, the range can better reflect the change range of the detection value over a period of time without causing the change range of the detection value to affect the judgment result too much.

[0057] Furthermore, taking the range of N consecutively obtained detection values, specifically including: taking the difference between any two detection values ​​among the N detection values, comparing the absolute values ​​of the multiple differences, and taking the absolute value of the largest difference as the range.

[0058] Therefore, the range of multiple detection values ​​is obtained, and the washing process is terminated by comparing the range with the set threshold value, so that the range can reflect the change in the amount of stains over a period of time more accurately, and then determine whether the change in the amount of stains during the washing process remains stable. When it is stable, the washing process is terminated, making the judgment of whether to terminate the washing process more accurate.

[0059] In this embodiment, if the range is greater than the set threshold, the amount of stains in the washing water is detected again after a certain interval; the range of the detection value obtained this time is taken from the N-1 detection values ​​obtained continuously before, and it is determined whether to end the washing process based on the obtained range.

[0060] Through the above method, continuous judgment on whether to end the washing process is achieved.

[0061] In a specific implementation of this embodiment, the N+ath detection value is the current detection value, wherein the initial value of a is 0, and each time the amount of stains on the washing water is detected, the value of a increases by 1, and the range is taken from the a+1th detection value to the N+ath detection value. Specifically, when the amount of stains on the washing water is detected at the initial startup and the detection values ​​are obtained, the 1st detection value to the Nth detection value are first obtained in the order of the time of acquisition, and then each time the amount of stains on the washing water is detected, the N+ath detection value is obtained as the current detection value, wherein the initial value of a is 1, and the value of a increases by 1 each time the amount of stains on the washing water is detected. More specifically, the control module is a controller of the washing device, preferably a single-chip microcomputer controller, which stores the first to Nth detection values ​​in the N storage spaces of the controller. After each detection of the amount of stains in the washing water, the storage space storing the first detection value is cleared, and then the data stored in the storage space storing the i-th detection value is overwritten to the storage space storing the i-1-th detection value (i is greater than or equal to 2), and the newly acquired N+a-th detection value is stored in the storage space originally storing the N-th detection value. This achieves the storage of continuously acquired detection values ​​by occupying a smaller storage space of the controller.

[0062] In this embodiment, during the washing process of the washing device, the amount of stains in the washing water is detected every equal set time to obtain a detection value; if the extreme difference is greater than the set threshold, the washing device detects the amount of stains in the washing water again after the set time.

[0063] As a specific implementation, the set time length is set to 5 seconds, and the value of N is set to 24. During the washing process, a detection value is obtained every 5 seconds, and the range of the 24 consecutive detection values ​​is taken. If the range is less than or equal to the set threshold, the washing process is ended.

[0064] It is understandable that the set time length can also be set according to actual needs. When the detection module is an ultraviolet spectrum sensor, the set time length is at least 0.5 seconds.

[0065] Therefore, by setting the duration and utilizing the advantages of the high detection frequency and high accuracy of the detection device, the judgment that the range of multiple detection values ​​is less than or equal to the set threshold is made more accurate.

[0066] In this embodiment, when the washing process starts to run for a preset time, the washing device starts to detect the amount of stains in the washing water and obtains the first detection value in this washing process, so that the judgment of whether to end the washing process is more in line with the stain dissolution process.

[0067] For example, the preset time is set to 30 seconds. In the first 30 seconds of the washing process, due to the low washing degree of the clothes and the uneven dissolution of the clothes treatment agent, the speed of stain dissolution is temporarily low and then increases. Therefore, the washing device does not obtain the detection value within 30 seconds from the beginning of the washing process, so that it is more in line with the stain dissolution process.

[0068] In this embodiment, the washing device presets several different washing modes, and the washing device determines the upper limit of the washing time of the current washing process according to the washing mode currently running; if the running time of the current washing process reaches the upper limit of the running time, the washing process is terminated.

[0069] If the running time of the washing process is greater than the upper limit of the running time, the washing process is terminated, thereby avoiding that the extreme difference of multiple detection values ​​cannot be less than or equal to the set threshold due to stains that cannot be washed clean, and preventing the long-term running of the washing process from causing the running motor of the washing equipment to overheat or the clothes to be washed badly, and further meeting the requirements of different washing modes for washing cleanliness.

[0070] In this embodiment, after the washing process is completed, the washing device runs a rinsing process, and the rinsing process includes one to multiple rinsing cycles; in the rinsing cycle, the amount of stains in the rinsing water is detected at intervals of a certain length of time to obtain a measurement value; based on the multiple measurement values, the stain content of the rinsing water is obtained through calculation; if the stain content of the rinsing water is greater than the set limit, the operation of draining the washing tub is executed, and then the next rinsing cycle is run again, otherwise the rinsing process is terminated after the current rinsing cycle is completed.

[0071] By ending the rinsing process if the stain content of the rinse water is greater than the set limit, fewer stains remain on the clothes. By setting the rinsing cycle, the water in the washing tub can be changed during the process of obtaining the measured value of the stain amount in the rinse water, making the rinsing process more efficient.

[0072] Specifically, the operation includes a filtering operation, more specifically a mean filtering, that is, taking the average value of the measured values ​​of the amount of stains in the rinse water obtained multiple times, so as to accurately end the rinsing process when the clothes are rinsed clean, so that the clothes can achieve a higher rinsing rate, lower stains and clothing treatment agent residues.

[0073] In this embodiment, the control method of the washing device also includes: after the water intake of the rinse cycle is completed, a rinse detection cycle of a fixed length is preset; in the rinse detection cycle, the amount of stains in the rinse water is detected at equal intervals of the set time to obtain a measurement value; at the end of the rinse detection cycle, the stain content of the rinse water is obtained through calculation based on a plurality of the measurement values.

[0074] Specifically, the rinse detection period is 30 seconds after the water intake of the rinse cycle is completed to 30 seconds before the end of the rinse cycle, and the measurement value of the amount of stains in the rinse water is obtained multiple times at equal intervals, and the average value of the multiple measurement values ​​is calculated to obtain the stain content of the rinse water. More specifically, the set time is preferably 2 seconds.

[0075] In this embodiment, the control method of the washing device also includes: the washing device presetting several different rinsing modes; the washing device determining the upper limit of the rinsing cycle according to the currently running rinsing mode; during the rinsing process, the washing device obtains the cumulative number of running times of the rinse cycle, and if the cumulative number of running times reaches the upper limit of the rinse cycle, the rinsing process is ended after the current rinse cycle is completed.

[0076] When the cumulative number of times the rinse cycle is run reaches the upper limit of the rinse cycle, the rinsing process is terminated, thereby preventing stains that cannot be rinsed away from causing the stain content of the rinse water to always be unable to be less than or equal to the set threshold. It also prevents the long-term running of the rinsing process from causing the operating motor of the washing equipment to overheat or the clothes to be rinsed badly, and further meets the requirements of different rinsing modes for rinsing cleanliness.

[0077] In this embodiment, the washing device is preset with washing programs corresponding to different clothing types / materials, and different washing programs correspond to different washing modes and rinsing modes.

[0078] Specifically, Figure 2As shown, the washing machine is preset with at least five washing programs including a cotton and linen washing program, a children's clothing washing program, an underwear washing program, a silk washing program and a pure cotton washing program according to the type / material of the clothes. The above five washing programs have a one-to-one corresponding washing mode and rinsing mode. Figure 2 The upper limit of the washing time shown in the second column of Figure 2 The value shown in the third column sets the upper limit of the rinse cycle, according to Figure 2 The set limit is set by the numerical value shown in the fifth column, which can achieve lower stain residue on the underwear compared with other washing modes and rinsing modes.

[0079] As a specific implementation, the washing machine can perform image recognition through an image sensor, such as a CCD (Charge Coupled Device) sensor, to automatically determine the type / material of the clothing, match the corresponding washing program, and thus determine the washing mode and rinsing mode to be run.

[0080] In this way, the washing mode and the rinsing mode are more in line with the material of the clothes and the needs for washing and rinsing cleanliness.

[0081] As another specific implementation, the washing device receives a selection instruction for a washing program, determines the washing program selected by the user according to the selection instruction, and then determines the washing mode and rinsing mode to be run, so as to implement a solution in which the user manually selects a washing program.

[0082] In this embodiment, the washing device can also change the water level of the washing mode and the rinsing mode through the user's setting instructions, and the setting instructions are obtained through the user's settings on the washing machine panel. If the user does not set the setting instructions, the washing device executes the preset water levels of the washing mode and the rinsing mode. The washing mode and the rinsing mode execute different water flows for clothes of different materials, for example, underwear and silk are washed with weak water flow.

[0083] In this embodiment, the specific process of the control method of the washing device is as follows: the washing device starts a washing process, and 30 seconds after the water intake of the washing process is completed, the control module enables the ultraviolet spectrum sensor of the detection module to start detecting the amount of stains in the washing water, obtain the detection value, and take the range of multiple detection values. If the range is less than or equal to the set threshold, the washing process is terminated; otherwise, the amount of stains in the washing water is detected again after a certain interval, and the range of the detection value obtained this time is taken from the N-1 detection values ​​obtained continuously before. If the range is less than or equal to the set threshold, the washing process is terminated; otherwise, the detection value is continuously obtained and the range is taken until the running time of the washing process is greater than the upper limit of the running time, or the range is less than or equal to the set threshold, and the washing process is terminated;

[0084] After the washing device finishes the washing process, the rinsing cycle of the rinsing process is started to circulate. From 30 seconds after the water intake of each rinsing cycle is completed to 30 seconds before the end of the rinsing cycle, the control module enables the ultraviolet spectrum sensor of the detection module to start obtaining the measurement value of the amount of stains in the rinsing water, and before the operation of draining the washing tub is performed, the above-mentioned judgment on the end of the rinsing process is performed. If the cumulative number of running times of the rinsing cycle reaches the upper limit of the rinsing cycle, or the stain content of the rinsing water is less than or equal to the set limit, the operation of draining the washing tub is performed, and then the rinsing process is ended. Otherwise, the next rinsing cycle is circulated until the rinsing process is ended.

[0085] In this embodiment, the range of multiple detection values ​​is obtained, and the washing process is terminated by comparing the range with a set threshold value, so that the range can reflect the change of the amount of stains within a period of time more accurately, and then determine whether the change amount of stains in the washing process remains stable. When it is stable, the washing process is terminated, so that the judgment of whether to terminate the washing process is more accurate; if the stain content of the rinse water is greater than the set limit, the rinsing process is terminated, so that less stains remain on the clothes, and by setting the rinsing cycle, it is possible to change the water in the washing tub during the process of obtaining the measurement value of the stain amount of the rinse water, so that the rinsing process is more efficient.

[0086] Embodiment 2

[0087] Based on the first embodiment, the present embodiment provides a control method for a washing device. The difference between the control method and the first embodiment is that: during the washing process, the washing device presets a detection cycle of a fixed duration; in the detection cycle, the amount of stains in the washing water is detected at equal intervals of the set duration to obtain a detection value, and a total of N detection values ​​are obtained in the detection cycle; at the end of the detection cycle, the range of the N detection values ​​is taken, and if the range is less than or equal to the set threshold, the washing process is terminated, otherwise the washing device re-runs the next detection cycle.

[0088] Through the detection cycle, it is possible to periodically detect whether new stains are dissolved in the washing water, so that the judgment of whether to end the washing process is more in line with the dissolution process of the stains.

[0089] In detail, if the extreme difference in a cycle is less than or equal to the set threshold, it means that no new stains are dissolved in the washing water in large quantities and the clothes have been washed clean. Otherwise, the next detection cycle is repeated. Through periodic detection and periodic judgment, the frequency of judgment is reduced, so that the dissolution of stains in the previous detection cycle has less impact on the extreme difference of the amount of stains in this detection cycle.

[0090] Specifically, the 24 consecutive detection values ​​are set as a detection cycle of 2 minutes. During the detection cycle, the amount of stains in the washing water is detected every 5 seconds to obtain a detection value. The range of the 24 consecutive detection values ​​is taken. If the range is less than or equal to the set threshold, the washing process is terminated, otherwise the next detection cycle is rerun.

[0091] Embodiment 3

[0092] like Figure 1 and Figure 2 As shown, this embodiment provides a washing device, and the washing device executes the control method of the washing device as described in Embodiment 1 and Embodiment 2.

[0093] In this embodiment, the washing device includes: a detection module, including an ultraviolet spectrum sensor, which detects the amount of stains in washing water by ultraviolet absorption spectroscopy to obtain a detection value; a control module, which is used to control the detection module to obtain a detection value at a certain interval, and take the range of N consecutively obtained detection values. If the range is less than or equal to a set threshold, the washing device is controlled to end the washing process.

[0094] In this embodiment, the detection module includes an ultraviolet spectrum sensor, which detects the amount of stains in washing water by ultraviolet absorption spectroscopy to obtain a detection value; a control module is used to control the detection module to obtain a detection value at a certain interval, take the range of N consecutively obtained detection values, and control the washing device whether to end the washing process based on the comparison result of the range with a set threshold.

[0095] In detail, the ultraviolet spectrum sensor detects the amount of stains using ultraviolet absorption spectroscopy. The ultraviolet absorption spectroscopy detects the amount of a substance by the corresponding relationship between the substance and its ultraviolet visible spectrum when the substance absorbs light of a specific wavelength to a maximum value. The amount of stains includes a variety of substances that cannot be detected by conventional sensors. Conventional sensors, such as infrared dual-tube sensors, cannot detect organic soluble stains, including oily stains, proteins, clothing treatment agents, and emulsions, while the ultraviolet spectrum sensor can detect the above-mentioned organic soluble stains and insoluble particles. Since organic soluble stains include the main types of dirt on clothes, during the washing process, by real-time and accurate detection of the amount of stains and taking the extreme difference of the N continuously obtained detection values, the interference of the fluctuation of the detection value of the washing water detected by the ultraviolet spectrum sensor on the judgment result is reduced, and the influence of the detection error caused by the ultraviolet spectrum sensor due to the setting position and other reasons on the judgment result is reduced. It also reduces the influence of electromagnetic interference on the judgment result caused by the motor of the washing equipment and other equipment on the ultraviolet spectrum sensor, increases the credibility of the extreme difference, and makes the timing of ending the washing process more accurate. At the same time, the ultraviolet spectrum sensor also has the advantages of high detection frequency and high sensitivity.

[0096] Through the control module, the washing equipment further processes the detection value of the washing water and the measurement value of the rinsing water detected by the detection module and makes a judgment on ending the washing process and the rinsing process. Through the ultraviolet spectrum sensor, accurate detection value of the washing water and measurement value of the rinsing water are obtained, making the timing of deciding to end the washing process and the rinsing process more accurate.

[0097] In this embodiment, the control module is a controller of the washing equipment, and the controller is equipped with relevant algorithms for ending the washing process and the rinsing process as described in Embodiment 1 and Embodiment 2, for further processing and logical judgment of the data obtained from the self-detection module, so as to better control the ending timing of the washing process and the rinsing process.

[0098] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A method for controlling a washing device, characterized in that: include: During the washing process of the washing device, the amount of stains in the washing water is detected at regular intervals to obtain a detection value; The range of N consecutively obtained detection values ​​is taken, and if the range is less than or equal to a set threshold, the washing process is terminated.

2. A control method for a washing device according to claim 1, characterized in that: If the extreme difference is greater than the set threshold, the amount of stains in the washing water is tested again after a certain period of time; The range of the detection value obtained this time and the N-1 detection values ​​obtained continuously before is taken, and it is determined whether to end the washing process based on the obtained range.

3. A control method for a washing device according to claim 2, characterized in that: During the washing process of the washing device, the amount of stains in the washing water is detected every equal set time to obtain a detection value; If the extreme difference is greater than a set threshold, the washing device detects the amount of stains in the washing water again after the set time has passed.

4. A control method for a washing device according to claim 1, characterized in that: When the washing process starts to run for a preset time, the washing device starts to detect the amount of stains in the washing water to obtain the first detection value in this washing process.

5. A control method for a washing device according to claim 1, characterized in that: Also includes: The washing device is preset with a plurality of different washing modes, and the washing device determines the upper limit of the washing time of the current washing process according to the washing mode currently being run; If the running time of the current washing process reaches the upper limit of the running time, the washing process is ended.

6. A control method for a washing device according to any one of claims 1 to 5, characterized in that: After the washing process is completed, the washing device runs a rinsing process, and the rinsing process includes one or more rinsing cycles; During the rinsing cycle, the amount of stains in the rinsing water is detected at regular intervals to obtain a measurement value; According to the plurality of the measured values, the stain content of the rinse water is obtained through calculation; If the stain content of the rinsing water is greater than the set limit, the operation of draining the washing tub is performed, and then the next rinsing cycle is run again, otherwise the rinsing process is ended after the current rinsing cycle is completed.

7. A control method for a washing device according to claim 6, characterized in that: Also includes: After the water inlet of the rinse cycle is completed, a rinse detection cycle of a fixed length is preset; In the rinsing detection cycle, the amount of stains in the rinsing water is detected at equal intervals of a set time to obtain a measurement value; At the end of the rinse detection cycle, the stain content of the rinse water is obtained through calculation based on the multiple measured values.

8. A control method for a washing device according to claim 6, characterized in that: The washing device is preset with several different rinsing modes; The washing device determines an upper limit of a rinsing cycle according to a currently running rinsing mode; During the rinsing process, the washing device obtains the cumulative number of operations of the rinsing cycle. If the cumulative number of operations reaches the upper limit of the rinsing cycle, the rinsing process is ended after the current rinsing cycle is completed.

9. A washing device, characterized in that: The washing device executes the washing device control method according to any one of claims 1 to 8.

10. A washing device according to claim 9, characterized in that: include: The detection module includes an ultraviolet spectrum sensor, which detects the amount of stains in the washing water by ultraviolet absorption spectroscopy to obtain a detection value; The control module is used to control the detection module to obtain a detection value at a certain interval, take the range of N consecutively obtained detection values, and control the washing device whether to end the washing process based on the comparison result of the range with a set threshold.

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